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- Aug 2023
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www.nature.com www.nature.com
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An unprecedented heatwave occurred in the Pacific Northwest (PNW) from ~25 June to 2 July 2021, over lands colonially named British Columbia (BC) and Alberta (AB) in Canada, Washington (WA), and Oregon (OR) in the United States.
- for climate change - impacts, climate departure, extinction, biodiversity loss, marine heat wave, ubc, Pacific Northwest heatwave
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- An unprecedented heatwave occurred in the Pacific Northwest (PNW)
- from ~25 June to 2 July 2021,
- over lands colonially named
- British Columbia (BC)
- Alberta (AB) in Canada,
- Washington (WA),
- Oregon (OR) in the United States.
- Near-surface air temperature anomalies reached up to 16–20 °C above normal over a wide region (Fig. 1),
- with many locations breaking all-time maximum temperature records by more than 5 °C (Fig. 2a).
- The Canadian national temperature record was broken 3 days in a row, at multiple locations,
- with the highest temperature of 49.6 °C recorded in Lytton, BC, on 29 June (Figs. 1b),
- 4.6 °C higher than the Canadian record prior to this event.
- The new record temperature was reportedly the hottest worldwide temperature recorded north of 45° latitude,
- and hotter than any recorded temperature in Europe or South America.
- An unprecedented heatwave occurred in the Pacific Northwest (PNW)
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